Research On Collision Risk Of Aircraft In Approach Stage Based On QAR Data

With the continuous development of civil aviation industry,flights taking off and landing at airports is increasing day by day.In order to adapt to the increasing trend of Airport Flights,many new multi runway airports have been built in China,which not only improves the operation efficiency,but also causes aircraft to face greater operational risks in the approach phase.Taking Qingdao Jiaodong airport,which has just been completed and launched,as the background,this paper uses QAR data and improved event model to study the collision risk in the approach phase under the single runway and parallel double runway operation modes.The research work mainly includes the following four aspects:Firstly,using the aviation safety data of China over the years,the aircraft collision risk factors in the approach stage are analyzed and studied,and the safety target level in the approach stage is proposed;Secondly,the QAR data of relevant aircraft are collected for sorting and analysis,and the acceleration error,course error and glide path error of aircraft in the approach stage are fitted and analyzed to obtain the relevant distribution function;Thirdly,the event model is optimized and improved to improve the calculation accuracy and reliability of the model.The relevant data obtained from the distribution function of acceleration error,course error and glide path error are substituted into the model to study the collision risk of aircraft in the longitudinal,lateral and vertical directions during the approach phase;Finally,the runway configuration,operation mode and meteorological conditions of Qingdao Jiaodong airport are analyzed,and the current wake interval and react wake standard are studied and analyzed;The improved event model is applied to evaluate the collision risk under the two wake separation standards,and the safety of the two operation modes of Qingdao Jiaodong airport is verified by comparing with the safety target level.